Struct Incoming 

pub struct Incoming {
    pub at: i32,
    pub through_frame_pointer: bool,
}

Where the arguments the caller passed on the stack are, and which register reaches them.

Two fields rather than one number because a realigned frame has no constant distance from its stack pointer to the caller’s. Forcing the alignment threw that distance away, and the frame pointer is what still reaches the caller’s stack afterwards, which is why a realigned frame is made to keep one. So there is always an answer, and which register it is counted from is part of it rather than something the reader is left to work out.

Fields

at: i32

How far above that register the first argument passed on the stack is.

through_frame_pointer: bool

Whether the register is the frame pointer rather than the stack pointer.

Implementations

impl Incoming

pub fn from_stack(at: i32) -> Self

That far above the stack pointer as it stands in the body of the function, which is where every other offset in a frame is from.

pub fn from_frame(at: i32) -> Self

That far above the frame pointer, which is the only way a realigned frame reaches back.

Trait Implementations

impl Clone for Incoming

fn clone(&self) -> Incoming

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Incoming

impl Debug for Incoming

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Incoming

impl PartialEq for Incoming

fn eq(&self, other: &Incoming) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Incoming